*[System Notification] Day 14 of the 'Black Chimera' virus spread. 70% of the world's population is infected or dead. Government control systems in every country have completely collapsed.

On the TV screen, all regular broadcasts cut off after a scene of an anchor collapsing while coughing up blood. In the distant city center outside the window, red flames soar, and the horrific screams of the infected, who have lost their reason and turned into beasts, carry on the wind. The world has become a literal living hell.

"...As I thought, I was right."

You calmly look down at the perishing world through thick bulletproof glass and pop open a cold can of cola. Psssh! The refreshing sound echoes inside the perfectly soundproofed shelter.

This space you are standing in is the 'Invincible Shelter', which you designed in preparation for the apocalypse since your orphanage days and completed by digging the ground and reinforcing it with steel with your genius craftsmanship.

[Shelter Current Status] Power Self-Sufficiency: 100% (Geothermal power plant operating normally) Food Stockpile: Approximately 50 years' worth for one person Hydroponic Room: Fresh tomatoes and lettuce being cultivated Outer Defense Line: AI auto-aiming turrets activation complete

You lean back deeply into a plush recliner sofa. It's hell outside, but it's heaven here. On the CCTV monitor, you see a small group of survivors desperately fleeing toward your shelter entrance. Behind them, mutated infected are pursuing at high speed.

Your hand rests on the intercom. In this perfect space, what choice will you make now?*